179 lines
6.9 KiB
Python
179 lines
6.9 KiB
Python
"""Test that we handle inferiors that send signals to themselves"""
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import lldb
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import re
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from lldbsuite.test.lldbplatformutil import getDarwinOSTriples
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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@skipIfWindows # signals do not exist on Windows
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class RaiseTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@skipIfNetBSD # Hangs on NetBSD
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def test_sigstop(self):
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self.build()
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self.signal_test("SIGSTOP", False)
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# passing of SIGSTOP is not correctly handled, so not testing that
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# scenario: https://llvm.org/bugs/show_bug.cgi?id=23574
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@skipIfDarwin # darwin does not support real time signals
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@skipIfTargetAndroid()
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def test_sigsigrtmin(self):
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self.build()
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self.signal_test("SIGRTMIN", True)
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@skipIfNetBSD # Hangs on NetBSD
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def test_sigtrap(self):
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self.build()
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self.signal_test("SIGTRAP", True)
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def launch(self, target, signal):
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# launch the process, do not stop at entry point.
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# If we have gotten the default for this signal, reset that as well.
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if len(self.default_pass) != 0:
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lldbutil.set_actions_for_signal(
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self, signal, self.default_pass, self.default_stop, self.default_notify
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)
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process = target.LaunchSimple(
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[signal], None, self.get_process_working_directory()
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)
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self.assertTrue(process, PROCESS_IS_VALID)
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self.assertState(process.GetState(), lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(
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thread.IsValid(), "Thread should be stopped due to a breakpoint"
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)
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return process
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def set_handle(self, signal, pass_signal, stop_at_signal, notify_signal):
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return_obj = lldb.SBCommandReturnObject()
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self.dbg.GetCommandInterpreter().HandleCommand(
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"process handle %s -p %s -s %s -n %s"
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% (signal, pass_signal, stop_at_signal, notify_signal),
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return_obj,
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)
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self.assertTrue(return_obj.Succeeded(), "Setting signal handling failed")
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def signal_test(self, signal, test_passing):
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"""Test that we handle inferior raising signals"""
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exe = self.getBuildArtifact("a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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lldbutil.run_break_set_by_symbol(self, "main")
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self.default_pass = ""
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self.default_stop = ""
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self.default_notify = ""
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# launch
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process = self.launch(target, signal)
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signo = process.GetUnixSignals().GetSignalNumberFromName(signal)
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# retrieve default signal disposition
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(
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self.default_pass,
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self.default_stop,
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self.default_notify,
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) = lldbutil.get_actions_for_signal(self, signal)
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# Make sure we stop at the signal
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lldbutil.set_actions_for_signal(self, signal, "false", "true", "true")
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
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self.assertTrue(thread.IsValid(), "Thread should be stopped due to a signal")
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self.assertTrue(
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thread.GetStopReasonDataCount() >= 1, "There was data in the event."
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)
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self.assertEqual(
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thread.GetStopReasonDataAtIndex(0), signo, "The stop signal was %s" % signal
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)
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# Continue until we exit.
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateExited)
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self.assertEqual(process.GetExitStatus(), 0)
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process = self.launch(target, signal)
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# Make sure we do not stop at the signal. We should still get the
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# notification.
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lldbutil.set_actions_for_signal(self, signal, "false", "false", "true")
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self.expect("process continue", substrs=["stopped and restarted", signal])
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self.assertState(process.GetState(), lldb.eStateExited)
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self.assertEqual(process.GetExitStatus(), 0)
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# launch again
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process = self.launch(target, signal)
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# Make sure we do not stop at the signal, and we do not get the
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# notification.
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lldbutil.set_actions_for_signal(self, signal, "false", "false", "false")
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self.expect(
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"process continue", substrs=["stopped and restarted"], matching=False
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)
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self.assertState(process.GetState(), lldb.eStateExited)
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self.assertEqual(process.GetExitStatus(), 0)
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if not test_passing:
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# reset signal handling to default
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lldbutil.set_actions_for_signal(
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self, signal, self.default_pass, self.default_stop, self.default_notify
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)
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return
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# launch again
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process = self.launch(target, signal)
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# Make sure we stop at the signal
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lldbutil.set_actions_for_signal(self, signal, "true", "true", "true")
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonSignal)
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self.assertTrue(thread.IsValid(), "Thread should be stopped due to a signal")
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self.assertTrue(
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thread.GetStopReasonDataCount() >= 1, "There was data in the event."
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)
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self.assertEqual(
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thread.GetStopReasonDataAtIndex(0),
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process.GetUnixSignals().GetSignalNumberFromName(signal),
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"The stop signal was %s" % signal,
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)
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# Continue until we exit. The process should receive the signal.
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateExited)
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self.assertEqual(process.GetExitStatus(), signo)
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# launch again
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process = self.launch(target, signal)
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# Make sure we do not stop at the signal. We should still get the notification. Process
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# should receive the signal.
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lldbutil.set_actions_for_signal(self, signal, "true", "false", "true")
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self.expect("process continue", substrs=["stopped and restarted", signal])
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self.assertState(process.GetState(), lldb.eStateExited)
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self.assertEqual(process.GetExitStatus(), signo)
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# launch again
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process = self.launch(target, signal)
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# Make sure we do not stop at the signal, and we do not get the notification. Process
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# should receive the signal.
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lldbutil.set_actions_for_signal(self, signal, "true", "false", "false")
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self.expect(
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"process continue", substrs=["stopped and restarted"], matching=False
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)
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self.assertState(process.GetState(), lldb.eStateExited)
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self.assertEqual(process.GetExitStatus(), signo)
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# reset signal handling to default
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lldbutil.set_actions_for_signal(
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self, signal, self.default_pass, self.default_stop, self.default_notify
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)
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